diff --git a/Cargo.lock b/Cargo.lock
index b05c1c7..508057f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -192,7 +192,7 @@ dependencies = [
  "digest 0.10.5",
  "ed25519-zebra",
  "k256",
- "rand_core 0.6.1",
+ "rand_core 0.6.2",
  "thiserror",
 ]
 
@@ -406,7 +406,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f2b443d17d49dad5ef0ede301c3179cc923b8822f3393b4d2c28c269dd4a122"
 dependencies = [
  "generic-array",
- "rand_core 0.6.1",
+ "rand_core 0.6.2",
  "subtle",
  "zeroize",
 ]
@@ -610,7 +610,7 @@ checksum = "403ef3e961ab98f0ba902771d29f842058578bb1ce7e3c59dad5a6a93e784c69"
 dependencies = [
  "curve25519-dalek",
  "hex",
- "rand_core 0.6.1",
+ "rand_core 0.6.2",
  "serde",
  "sha2 0.9.9",
  "thiserror",
@@ -637,7 +637,7 @@ dependencies = [
  "generic-array",
  "group",
  "pkcs8",
- "rand_core 0.6.1",
+ "rand_core 0.6.2",
  "sec1",
  "subtle",
  "zeroize",
@@ -712,7 +712,7 @@ version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df689201f395c6b90dfe87127685f8dbfc083a5e779e613575d8bd7314300c3e"
 dependencies = [
- "rand_core 0.6.1",
+ "rand_core 0.6.2",
  "subtle",
 ]
 
@@ -790,7 +790,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7391856def869c1c81063a03457c676fbcd419709c3dfb33d8d319de484b154d"
 dependencies = [
  "ff",
- "rand_core 0.6.1",
+ "rand_core 0.6.2",
  "subtle",
 ]
 
@@ -1132,9 +1132,9 @@ dependencies = [
 
 [[package]]
 name = "rand_core"
-version = "0.6.1"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c026d7df8b298d90ccbbc5190bd04d85e159eaf5576caeacf8741da93ccbd2e5"
+checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
 dependencies = [
  "getrandom 0.2.7",
 ]
@@ -1417,7 +1417,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "deb766570a2825fa972bceff0d195727876a9cdf2460ab2e52d455dc2de47fd9"
 dependencies = [
  "digest 0.10.5",
- "rand_core 0.6.1",
+ "rand_core 0.6.2",
 ]
 
 [[package]]